/* 头部 */
body {
  position: relative;
  padding-top: 80px;
}
header {
  width: 100%;
  height: 80px;
  background: #ffffff;
  position: absolute;
  top: 0;
  z-index: 1;
}
header > nav {
  height: 80px;
  width: 1110px;
  margin: auto;
  display: flex;
  justify-content: space-between;
}
header > nav > ul {
  display: flex;
}
header > nav > ul > li {
  line-height: 74px;
  box-sizing: border-box;
  text-align: center;
}
header > nav > ul > li > a {
  width: 120px;
  display: inline-block;
  font-size: 20px;
  color: #333333;
}
header > nav > ul > li > a.nav_active {
  color: #866961;
  border-bottom: 6px solid #866961;
}
header > nav > ul > li > .subtitle {
  background: #866961;
  display: flex;
  flex-direction: column;
  font-size: 15px;
}
header > nav > ul > li > .subtitle > a {
  color: #fff;
  line-height: 50px;
}
header > nav > ul > li > .subtitle > a:hover {
  background: #fff;
  color: #866961;
}

/* 底部 */
footer {
  height: 80px;
  background: #866961;
}
footer > main {
  height: 80px;
  width: 1110px;
  margin: auto;
  font-size: 14px;
  color: #fefefe;
  line-height: 80px;
  box-sizing: border-box;
  padding-left: 22px;
}
footer > main > img {
  margin-left: 160px;
}
